/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.apache.commons.exec.launcher;

import org.apache.commons.exec.OS;

/**
 * Builds a command launcher for the OS and JVM we are running under.
 */
public final class CommandLauncherFactory {

	private CommandLauncherFactory() {
	}

	/**
	 * Factory method to create an appropriate launcher.
	 * 
	 * @return the command launcher
	 */
	public static CommandLauncher createVMLauncher() {
		// Try using a JDK 1.3 launcher
		CommandLauncher launcher;

		if (OS.isFamilyOpenVms()) {
			launcher = new VmsCommandLauncher();
		} else {
			launcher = new Java13CommandLauncher();
		}

		return launcher;
	}
}
